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Systems and Methods for Reducing Interference Between a Plurality of Wireless Communications Modules

Active Publication Date: 2011-01-13
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008]In light of the previously described problems, there exists a need for a method and system, in which interference may be reduced between a plurality of wireless communication modules sharing a single antenna for simultaneous operations.

Problems solved by technology

When a Bluetooth transmission occurs on a frequency band that falls within the frequency space occupied by an ongoing WLAN transmission, a certain level of interference may occur, depending on the signal strength thereof.
As a result, WLAN throughput is highly damaged as the WLAN and Bluetooth wireless communication services sharing a single antenna.

Method used

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  • Systems and Methods for Reducing Interference Between a Plurality of Wireless Communications Modules
  • Systems and Methods for Reducing Interference Between a Plurality of Wireless Communications Modules
  • Systems and Methods for Reducing Interference Between a Plurality of Wireless Communications Modules

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Embodiment Construction

[0030]The following description is of the best-contemplated mode of carrying out the invention. This description is made for the purpose of illustrating the general principles of the invention and should not be taken in a limiting sense. The scope of the invention is best determined by reference to the appended claims.

[0031]FIG. 4 shows a diagram illustrating a system for the coexistence between two wireless communications modules sharing a single antenna in accordance with an embodiment of the invention. The system 400 comprises an antenna 10, a switching device 20, a connection device 30 and a wireless communications chipset 100. The wireless communications chipset 100 comprises a control unit 110, a WiFi module 120, a BT module 130, a separator 140, a WiFi Tx front-end 151, a WiFi / BT Rx front-end 152, BT Tx front-ends 153 and 155, a BT Rx front-end 154, a balun unit 161, and balun-switch units 162 and 163. Each of the balun unit 161 and the balun-switch units 162 and 163 comprise...

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Abstract

A wireless communications system is provided with a first wireless communications and a second wireless communications. The first wireless communications module transmits or receives a first wireless signal in a first frequency band selected from a first frequency range. The second wireless communications module transmits or receives a second wireless signal in a second frequency band selected from a second frequency range, and adjusts a transmission power of the second wireless signal in response to that a frequency offset between the first frequency band and the second frequency band falls within a predetermined range.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 224,107, filed on Jul. 9, 2009, the entirety of which is incorporated by reference herein; and U.S. Provisional Application No. 61 / 298,627, filed on Jan. 27, 2010, the entirety of which is incorporated by reference herein.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates generally to the coexistence between a plurality of wireless communications modules, and more particularly, to systems and methods for the reducing interference between a plurality of co-existed wireless communications modules.[0004]2. Description of the Related Art[0005]To an increasing extent, a multitude of communication functions are being merged into mobile devices. As shown in FIG. 1, a cellular phone may connect to a wireless local area network (WLAN) via a Wireless Fidelity (WiFi) module thereof and simultaneously communicate with a Bluetooth (BT) handset...

Claims

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Application Information

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IPC IPC(8): H04B7/00
CPCH04W52/16H04B1/7136H04B17/318H04B2001/7154H04B1/715
Inventor HSU, HONG-KAIKO, LI-CHUNCHANG, CHIA-MINGYEH, CHIH-HAOHSIA, EN-CHIEHHSIEH, I-LINCHIEN, WEN-YINGLIN, JWO-ANTSENG, TING-CHECHEN, YUAN
Owner MEDIATEK INC
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